推荐：Sulfite Test@2024已更新

属性
特殊分析物
sulfite

质量水平
100

相容性
for use with MQUANT®

detection method
titrimetric

储存温度
15-25°C

说明

一般描述
Method: titrimetric (iodometric) with titration pipette MQuant®
The test can be used for the titrimetric determination of sulfite in wastewater, boiler water and water in heating systems.
This MQuant® Sulfite test (formally MColortest®) is suitable for the titrimetric determination using a graduated syringe. It can be used in
Groundwater, drinking water, and surface water
Wastewater
Boiler water
Boiler feed water
Water in heating systems
Food and beverages, milk and dairy products
This test is not suited for seawater.

Method
In sulfuric solution by titration with potassium iodate solution against starch as the indicator, iodide ions are oxidized to iodine, which in turn oxidizes sulfite ions to sulfate ions. At the titration end-point, excess iodine forms a blue complex with the indicator. The sulfite concentration is determined from the consumption of titration solution (iodometric determination).
法律信息
MCOLORTEST is a registered trademark of Merck KGaA, Darmstadt, Germany
MQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany